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44 Sheets-Sheet 1.

(No Model.) I'. J. STALLINGS.

SAW FILING AND SETTING- MACHINE. No. 585,891. Patented July 6,1897.

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(No Mod'el.)

E. J. STALLINGS. SAW FILING AND SETTING lszpflslllml Patented July 6, 18197. l

Not 585,891.

(No Model.)

I. J. S-TALLINGS.

4 Sheets-Sheet 3 SAW FILING A ND SETTING MACHINE. No. 585,891.

SAW FILING AND SETTING" MACHINE. No. 585,891. `Patented July 6; 1897.

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NrTEn STATES PATENT EEicE.

` FRANCIS JOSEPH STALLIN GS, OF EFFINGIIAM, ILLINOIS, ASSIGNOR OF ONE- HALF TO JOHN B. SEIMER.

SAW FILING AND SETTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 585,891, dated July 6, 1897. Application filed September 28, 1896. Serial No. 607,230. (No model.)

T all whom z5 may concern.-

Beit known that I, FRANCIS JOSEPH STALL- ING-S, a citizen of the United States, residing at Efngham, in the county of Effingham and State of Illinois, have invented certain new and useful Improvements in Saw Filing and Setting Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the gures of reference marked thereon, which form a part of this specification.

My invention relates to a saw filing and sete :ing machine the nature and objects of which will be fully set forth in the accompanying specification and the novel features thereof particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan view of the machine; Fig. 2, an end view showing the actuatingmechanism; Fig. 3, a vertical transverse section on the line 3 3 of Fig. 1; Fig. 4, a similar view on the line 4 4 of Fig. l; Fig. 5,a perspective view showing the inner side of onehalf of the carriage and the file-carrier supported therein, and Figs. 6, 7, 8, and 9 are views of detached details.

The frame of the machine consists of the legs 1 and 2, tie-rods 3 3, and the angle-bars 4 4, the latter being bolted to the upper portions of the legs 1 1. The legs l are pivoted at 5 to the legs 2, in order that the machine may be swung over to give access to the saw when necessary. In the upper front corners of the frame a square bar 6, having rounded end journals, is mounted, and one of the ends projects beyond its bearing to carry a lever 7, the latter being so secured to the bar 6 as to turn the bar in its bearings. In the rear upper corners of the frame a screw 8 is journaled, and one of its ends projects beyond the bearing and carries a pinion 9, which meshes with a gear 10, mounted on a stub-shaft projecting from the frame. A pinion 11 is firmly secured to one face of the gear lO to turn with it, and this pinion 11 meshes with a gear 12. From the opposite faces of the gear 12 pins 13 and 14 project, the former being j ournaled in a suitable bearing 15,attached to the frame of the machine. On the outer end of the pin 14E a ratchet-Wheel 16 is keyed or otherwise secured to move therewith. Between the gear 12 and the ratchet-wheel 16 a collar 17 fits loosely on the pin 14, and projecting upwardly 5 5 from the collar is a short bar 18, which carries on its outer face a vertically-sliding ratchetpin 19, the lower end of which engages the teeth of the ratchet-)vheel16. One face of the lower end of the pin 19 is beveled to per- 6o mit it to ride over the ratchet-teeth in the usual manner, and the pin 19 can be turned in its supporting-sleeve 2U in order that the ratchet-wheel may be rotated in either direction. A locking-pin 21 passes through the 65 upper end of the ratchet-pin 19and has vertical play in slots 22 in the sleeve 20. The pin 19 is thereby held against accidental rotation in the sleeve. j

23 is a link pivotally connected at. one end 7o to the bar 1S and at its other end to the lever 7. The pin 24, on which the outer end of the link 23 is pivoted, is vertically adjustable in a slot 25 in the lever 7 and is held in its adj usted position by a thumb-screw 26 or other 75 suitable device. The object of this adjustment is toincrease or diminish the movement of the bar 18, for a purpose to be hereinafter described.

From the foregoing description it will be 8o apparent that movement will be transmitted from the lever 7 to the screw-rod 8 through the medium of the link 23, ratchet-pin 19, ratchet-wheel 16, and the gears and pinions 12, 11, 10, and 9.

The carriage which supports the saw-iiling and saw-setting mechanism consists of two bars 27 27, connected together at their ends by cross-plates 28, and two bows 29 29, secured at their ends to the plates 2S. It will 9o be seen that the bows 29 extend across the frame above the angle-bars 4'4, the square bar 6, and screw-rod 8 and that the bars 27 27 are below them. On each of the plates 28 between the bows 29 are secured a pair of 95 brackets 30 30, those at the front of the machine serving as bearings for the round bosses 31 31, projecting from opposite sides of the lower end of an arm 32. A square hole eX- tends through the bosses 31 3l, and through Ioo this hole the square bar 6 extends. It will be apparent, therefore, that when the lever 7 is rocked a similar movement will be imparted to the arm 32 through the medium of the square bar 6. The brackets on the rear of the machine serve as bearings for a weighted lever 33, to which is connected a half-nut 34, which engages the screw-rod 8, and thereby moves the carriage longitudinally of the machine as the screw-rod is rotated. Plates 35 35 are also secured to the carriage and slide on the horizontal members of the angle-bars 4 to support and guide the carriage. The inner face of each bar 27 is provided with two parallel grooves 36 37, which communicate with each other by passages at their extreme ends, as indicated at 38, and also midway of their length, as indicated at A39.

The file-carrier consists of a plate 40, having lugs 4l 4l at each end, which lugs work in the grooves 36 37 of the carriage. The tile 42 is supported by the two pins 43 43, which iit loosely7 in the openings 44 44 in the ends of the carrier, nuts 45 45 on the ends of the pins 43 preventingr them from dropping down, and the file is held down to its work by the spring 46, which bears on the upper ends of the pins 43. The file-carrier is reciprocated to and fro in the carriage by means of a swinging bar 47, pivoted at its upper end to the bows 29 and connected at its lower end to one end of a link 49, whose other end is pivoted to a lug on the file-carrier. A link 48 connects the swinging bar 47 to the arm 32. It is evident from the foregoing that the to-andfro movement of the lever 7 will cause the filecarrier and the file to have a similar movement. In the forward movement of the file, which files the saw, the lugs 4l of the filecarrier will slide in the lower grooves 37 of the carriage, but when the forward stroke is completed the file is lifted out of contact with the saw before it begins its backward movement. This is accomplished by means of the springs'l 51, secured to the bottom of the carriage, with which springs tapered lugs 52 52 on the bottom of the file-carrier come in contact near the end of the forward stroke and force the springs downwardly until the lugs 41 are opposite the passages 38 and 39, when the spring will lift the file-carrier up and in the return movement the lugs 4l will slide in the grooves 36, and at the completion of the return movement the lugs 41 will drop down again into the grooves 37.

The saw-setting is accomplished by the following mechanism: Projecting outwardly from one of the carriage-bars 27 is a fixed pin 53, on which are loosely mounted two disks 54 54. Each disk is provided with two teeth 55 55 on its periphery, but these teeth when the disks are in position are on opposite sides. The recesses in the disks which form the teeth 55 each has a rounded portion, as indicated at 55a. Rigidly attached to each disk is an arm 56, provided with a dovetail seat 57 to receive the similarly-formed end of a hammer 58. The hammer 58 can be adjusted laterally in its seat to suit saw-teeth of different sizes, and it is held in its adjusted position by a set-screw 59. These hammers are also arranged to operate on opposite sides of the saw. Close to the outer faces of the disks 54 smaller disks 60 60 are rigidly secured on the pin 53, and each of these disks is provided with a tooth 6l on its periphery adapted to be engaged by a pawl 62, pivoted on the adjacent disk 54; Extending from the swing-V ing bar 47 is a pin 63, on which are pivoted the crossed levers 64 64, the lower ends of which are hooked, as indicated at 65, and adapted to engage the teeth 55 of the disks 54. The upper ends of the levers 64 are connected by a spring 66, which forces their lower ends into contact with the disks 54. Springs 67 are secured at one end to the disks 60 or to the pin 53, and the free ends of the springs engage the arms 56 on the disks 54 and have a normal tendency to force them toward each other and bring the hammers 58 into contact with the saw-teeth on opposite sides of the saw. The operation of this part of the machine is as follows: As the swinging bar 47 is oscillated the levers 64 will alternately act on their respective disks 54 and turn them on the pin 53, the forward movement of the bar 47 causing one disk to be turned and the backward movement the other. When one of the levers 64 is engaged with the upper tooth 55 of its disk and partially turns the disk, the pawl 62 will drop into the tooth 6l on the disk 60 and prevent any return movement of the disk 54, when the arm 47 in its return movement causes the lever to disengage the upper tooth 55 and become engaged with the lower one. The next partial turn of the disk 54 will carry the pawl 62 away from the tooth 6l, and the hammer 58 will be lifted against the force of the spring 67, and just before the arm 47 reaches the limit of its movement the hooked end of the lever 64 will have turned sufficiently on the rounded portion 55L on the disk to disengage the lever from the tooth 55 and leave the disk 54 free to be suddenly turned in the opposite direction by the spring 67. The centrifugal force acting on the pawl 62 will carry it past the tooth 6l, and the disk will therefore be enabled to make a complete return movement and cause the hammer 58 to descend and give the desired blow to the saw-tooth.

Fig. 9 shows the position of the disk 54, lever 64, and pawl 62 just as the hooked end of the lever is about to disengage the lower tooth 55. 62 indicates a pin to prevent the pawl 62 from being thrown completely over by centrifugal force.

The hammers 58 will act alternately on alternate teeth of the saw, as is well understood. Y

The saw-clamp consists of two angle-bars 68 and 69, the former being rigidly supported by the legs 2 and the latter being supported on and adjustable relative to the former by the levers 70 70. The vertical members of the angle-bars 68 and 69 are slotted at each IOO IIO

end, as indicated at 71, in order that the plate '72, carrying the roller 73, may have vertical lnovement. The plate is supported and ladjusted vertically by the screw 7A, passing through the horizontal member of the anglebar G3. rlhese rollers engage the back edge of the saw to be filed and are for the purpose of adjusting the saw vertically to the proper position to be filed. 7 5 represents an adjusting-finger extending across the space between the angle-bars and is intended to engage one of the teeth of a band-saw or the end of a handsaw for the purpose of adjusting the saw longitudinally in the'clamp in order that the iile may properly engage the teeth. The iinger is adjusted by means of the screw 7 6, which turns loosely in the lugs 7 7 7 7 and has a threaded portion working in a correspondingly-threaded opening in the end of the finger 75.

The operation of the machine is as follows: After the saw has been properly adjusted in the clamp, so that the file properly engages the first tooth, the operator pushes the lever 7 forward, thereby causing the iile to move forward andliletheiirsttooth. Thesamemovementof the lever also causes thepawl 19 to slide over one tooth in the ratchet-wheel16 and drop behind it, and it also causes one of the levers 64 to partially rotate its disk 54E. The return or backward movement of the lever causes the file-carrier to move backward-with the file out of engagement with the teeth, as already described. It also causes the other lever 64 to partially rotate its disk, and at the same time the lever 64E that has already partially rotated its disk is made to engage the lower tooth preparatory to turning its disk the full amount of its rotation. This same movement of the lever causes the dog 19 to rotate the ratchet wheel 16 to the extent of one tooth, and the ratchet-Wheel in turn rotates the screw 3, through the medium of the interposed gearing, to a suiilcient extent to move the carriage longitudinally of the machine a sufficient distance to bring the iile into engagement with the nexttooth, and so on until all the teeth have been filed and set.

It is evident that the feed of the carriage longitudinally of the machine must be varied to suit teeth of different sizes, and this variation of the feed is effected by changing the ratchet-wheels 16. These wheels are made with different numbers of teeth, ranging from eight to fourteen, and the gearing between the 'ratchet-wheel and the screw 3 is so arranged that a ratchet-wheel having eight teeth will feed the carriage accurately to a saw having eight teeth to the inch, and a ratchetwheel having fourteen teeth will give an accurate feed to a saw with fourteen teeth to the inch. When a saw having seven teeth to the inch is to be filed, a ratchet-wheel with fourteen teeth may be used, and by elevating the end of the link 23, connected to the lever 7, the pawl 19 may be made to move over two teeth on the ratchet-wheel by the forward movement of the lever and thereby enable the lever on its return movement to rotate the ratchet-wheel one-seventh of its circumference. Y

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a saw-ling machine, the combination of a supporting-frame, a squared bar supported in the frame to turn therein, a screwrod journaled in the frame, a lever rigidly connected to the squared bar, a ratchet-andpawl mechanism and gearing connecting the lever and screw-rod, a carriage supported at one end by the squared bar to slide thereon, and having at its other end a half-nut which engages the screw-rod, a reciprocating filecarrier supported by the file-carriage, bows connected to the carriage, a swinging bar pivoted at its upper end to said bows and connected at its lower end to the file-carrier, an arm 32, extending from the squared bar and alink connecting the said arm and the swinging bar substantially as and for the purpose described.

2. In a saw ling and setting machine, the combination with the file-carrier, its carriage, and a swinging bar pivoted on the carriage and connected to the carrier, of a saw-setting mechanism consisting of two opp'ositelytoothed disks loosely mounted on a pin projecting from the carriage, hammers carried by said disks, crossed levers pivoted on a pin projecting from the swinging arm, said levers having hooked lower ends to engage the teeth on the disks, and springs secured at one end to a iixed support and their free ends engaging the hammers, substantially as and for the purpose described.

3. A saw-setting mechanism consisting of two disks loosely mounted on a pin, each disk having two teeth on its periphery, the teeth on one disk being opposite those on the other, hammers carried by said disks, crossed, pivoted levers having hooked lower ends to engage the teeth on the disks, a spring connecting the upper ends of the levers, means to rock the crossed levers to partially rotate said disks alternately, a pawl pivoted on each disk, fixed stops engaged by said pawls when the disk is moved by its upper tooth, and springs secured at one end to iixed supports and engaging the hammers with their free ends, substantiall y as described.

4. In a saw-setting. mechanism, two disks loosely mounted on a shaft, a swinging bar carrying rocking levers to partially rotate said disks alternately, springs to return said disks, arms carried by said disks and extending therefrom in opposite directions, each arm having a recess in its outer end, hammers adjustably supported in the said recesses, and means to lock the hammers in their adjusted positions, substantially as and for the purpose set forth.

Ioo

IIO

tudinally in the clamp, substantially as de- Io scribed.

In Witness whereof I alix my signature in presence of two Witnesses.

FRANCIS JOSEPH STALLINGS.

Witnesses:

JOHN SIEMER, C. L. NOLTE. 

